{"copyright_id":"0x1b9aaec298aa2bcb008be64cd1e94beb2b4ea25bcde82a6cc20f2ab914c26f09","name":"Chor der Deutschen Staatsoper Berlin","registered_at":"2026-06-12T12:39:17Z","symbol":"NIM0300388","token_address":"0x43fe71366a30e7d3561f352b0a3e69ffe919b23b","type":"artist","uuid":"e9234d20-bc28-45d0-a407-f95cbe3e9c07"}
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b9aaec298aa2bcb008be64cd1e94beb2b4ea25bcde82a6cc20f2ab914c26f09. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e9234d20-bc28-45d0-a407-f95cbe3e9c07.json and https://artists.proofprofile.net/proofs/artist/e9234d20-bc28-45d0-a407-f95cbe3e9c07.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Bizet: Carmen, WD 31, Act 1: Habanera. "L'amour est un oiseau rebelle" (Carmen, Chœur)
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10fab3fa44f7e780234b5ac8fbb84445dfeb543dcedbdfde0c8786f99f212272. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC1200852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10fab3fa44f7e780234b5ac8fbb84445dfeb543dcedbdfde0c8786f99f212272. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC1200852.
Wagner: Tannhäuser, Act 1: "Naht euch dem Strande!" (Sirenen)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb84c60fb98641ba0dde51d9aa48571cdff90e60c02b4e41a4059732d3937815. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA800113202.
Wagner: Tannhäuser, Act 1: "Geliebter, sag! Wo weilt dein Sinn?" (Venus, Sirenen)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb102481a2ef2f9c3374aa002924223868c57519a3c9540588d6c6e13a2a3973e. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA800113203.
Wagner: Tannhäuser, Act 1: "Geliebter! Komm, sieh dort die Grotte" (Venus, Sirenen)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeaaee4ebf878434d8eb5740a7c5c4fb6c4f0b4a990f6172810d5813f15e8c78. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA800113206.
Wagner: Tannhäuser, Act 1: "Stets soll nur dir mein Leid ertönen" (Tannhäuser)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd05fe9694708ae8d8fe865c6502c33d694dbb881a63820d6de6a352d0ae70475. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA800113207.
Wagner: Der fliegende Holländer (The Flying Dutchman), Act 1: "Hojohe" (Daland, Steersman, Chorus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0abddcfbe06bfa955cc5bfc84e665e03452df9e4e14a1631477874997dcc52aa. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA800200251.
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Wagner: Der fliegende Holländer (The Flying Dutchman), Act 2: "Summ' und Brumm" (Chorus, Mary)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7311508f573756dd7c290d24a439bd56e66f126af6f4a78d7081ed1c4f000e33. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA800200258.